How do I get my files on my iphone to backup to icloud?

Thanks I did see that but it doesn’t actually tell you there how to add your files from your iPhone files to the iCloud Drive.

I figured it out myself soon after, you just have to go to each file and press and hold and a menu pops up and the option to move it appears, and you can then select the iCloud Drive. As soon as you select it, it pops up with ‘copy’ and it then adds it.

I spent quite a while trying to find the solution via Apple or Google and I couldn’t find a single answer.